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san4es73 [151]
3 years ago
9

What are superconductors?

Chemistry
2 answers:
DaniilM [7]3 years ago
8 0

The answer would be B

Check out my quizlet

HOPE I HELPED!!

:)

EleoNora [17]3 years ago
7 0
Superconductors are materials that transfer energy with no resistance. Metals are usually the best conductors.

Superconductivity is a phenomenon characterized by zero electrical resistance at below critical temperatures. Metals are the best conductors because the molecules inside them are tightly packed, which allows electricity to travel efficiently.

Water is also a good conductor because of the ions and minerals in it. However, water itself is not a conductor of electricity.
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Which solution has the lowest pH? A. 1.0 M HNO2 B. 1.0 M CH3COOH C. 1.0 M HCOOH D. 1.0 M HNO3 E. 1.0 M HPO4–
denpristay [2]
The parameter pH is a measure of the substance's acidity or basicity. It is quantitatively equal to the negative logarithm of the concentration of H+ ions. So, the lower the pH, the more acidic the substance, Otherwise, the higher the pH the more basic the substance. The pH range runs from 1 to 14, with 7 being neutral.

So, if we are asked to distinguish which of those have the lowest pH, we have to know the moles of H+ ions. Since all of them have a concentration of 0.1 M, concentration is not a factor. Thus, we just have to identify the strongest acid among the list. That is easy to answer because you only have to remember 7 strong acid occurring in nature: HCl, H₂SO₄, HNO₃, HClO₄, HClO₃, HBr, and HI. Since only HNO₃ is included in the list among the choices, the answer would be letter D. 
8 0
3 years ago
I need c and d pleaseeee!!
ipn [44]

Answer: yes

Explanation: cuz i know lol

4 0
3 years ago
A diploid somatic ("body") cell has 2n = 20 chromosomes. At the end of mitosis, each daughter cell would have ______ chromosomes
kozerog [31]

Answer:

At the end of mitosis, 2n = 20

At the end of meiosis I, n = 10

At the end of meiosis II, n = 10

Explanation:

Mitosis is a type of cell division in which daughter cell produced are genetically identical to their mother cell. So, no. of chromosome does not change after mitosis.

So, at the end of mitosis, each daughter cell would have <u>20</u> chromosome.

Meiosis is a type of cell division in which mother cell produces two haploid cells ones with a single set of chromosomes.

Meiosis is a two step cell division, Meiosis I and Meiosis II.

In meiosis I, homologous pair separates, so no. of chromosomes becomes half.

In meiosis II, sister chromatids separates. So, the number of chromosomes remains same (i.e. Have same no. of chromosome as present in cell produced after meiosis I).

So, at the end of mitosis, each daughter cell would have <u>20</u> chromosome.

At the end of meiosis I, each daughter cell would have n = 10 chromosomes. At the end of meiosis II, each daughter cell would have n = 10 chromosomes.

7 0
3 years ago
What does each period in the periodic table correspond to?
DedPeter [7]
Each period corresponds to a principal energy level.
3 0
4 years ago
The volume of a gas is 5.0 L at 278 K. If the temperature of the gas
goldfiish [28.3K]

Answer: O 10.1 is your answer! Please mark me as brainlyest!?

6 0
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